1 files changed, 52 insertions, 1 deletions
diff --git a/objectivec/Tests/GPBWellKnownTypesTest.m b/objectivec/Tests/GPBWellKnownTypesTest.m
index 78f4e637..48c875aa 100644
--- a/objectivec/Tests/GPBWellKnownTypesTest.m
+++ b/objectivec/Tests/GPBWellKnownTypesTest.m
@@ -28,7 +28,9 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#import "google/protobuf/Unittest.pbobjc.h"
 #import "GPBWellKnownTypes.h"
+#import "GPBTestUtilities.h"
 
 #import <XCTest/XCTest.h>
 
@@ -38,7 +40,7 @@ static const NSTimeInterval kFutureOffsetInterval = 15000;
 // Nanosecond time accuracy
 static const NSTimeInterval kTimeAccuracy = 1e-9;
 
-@interface WellKnownTypesTest : XCTestCase
+@interface WellKnownTypesTest : GPBTestCase
 @end
 
 @implementation WellKnownTypesTest
@@ -99,4 +101,53 @@ static const NSTimeInterval kTimeAccuracy = 1e-9;
   [duration2 release];
 }
 
+- (void)testAnyPackingAndUnpacking {
+  TestAllTypes *from = [TestAllTypes message];
+  [self setAllFields:from repeatedCount:1];
+  NSData *data = from.data;
+
+  // Test initWithMessage
+  GPBAny *anyInited = [[GPBAny alloc] initWithMessage:from];
+  XCTAssertEqualObjects(
+      [GPBTypeGoogleApisComPrefix stringByAppendingString:from.descriptor.name],
+      anyInited.typeURL);
+  XCTAssertEqualObjects(data, anyInited.value);
+  [anyInited release];
+
+  // Test setMessage.
+  GPBAny *any = [GPBAny message];
+  [any setMessage:from];
+  XCTAssertEqualObjects(
+      [GPBTypeGoogleApisComPrefix stringByAppendingString:from.descriptor.name],
+      any.typeURL);
+  XCTAssertEqualObjects(data, any.value);
+
+  // Test messageOfClass
+  TestAllTypes *to = (TestAllTypes*)[any messageOfClass:[TestAllTypes class]];
+  XCTAssertEqualObjects(from, to);
+  XCTAssertEqual([any messageOfClass:[ForeignMessage class]], nil);
+  XCTAssertEqual([[GPBAny message] messageOfClass:[TestAllTypes class]], nil);
+
+  // Test setMessage with another type.
+  ForeignMessage *from2 = [ForeignMessage message];
+  [any setMessage:from2];
+  XCTAssertEqualObjects(
+      [GPBTypeGoogleApisComPrefix stringByAppendingString:from2.descriptor.name],
+      any.typeURL);
+  XCTAssertEqual(0UL, [any.value length]);
+
+  // Test wrapsMessageOfClass
+  XCTAssertTrue([any wrapsMessageOfClass:[from2 class]]);
+  XCTAssertFalse([any wrapsMessageOfClass:[from class]]);
+#if !defined(NS_BLOCK_ASSERTIONS)
+  // If assert is enabled, throw exception when the passed message class to
+  // wrapsMessageOfClass is not a child of GPBMessage.
+  XCTAssertThrows([any wrapsMessageOfClass:[NSString class]]);
+#else
+  // If assert is disabled, return false when the passed message class to
+  // wrapsMessageOfClass is not a child of GPBMessage.
+  XCTAssertFalse([any wrapsMessageOfClass:[NSString class]]);
+#endif
+}
+
 @end